/**
 * 
 */

	function isEmail(email)
	{
		if (email=="") return false;
		reEmail=/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/
		return reEmail.test(email);
	}